X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fqtui%2Fchatscene.h;h=2204d667e695bd2ed0742b1877063e86c3d9f489;hp=66026c1bc323b43ee98c7237097f8f0de05cdd20;hb=c80ab2e825ff9125c1c7e8e829487a4b1c118579;hpb=62192fb6cd9cc211b5b9fe844c9b4c2f98f923cc

diff --git a/src/qtui/chatscene.h b/src/qtui/chatscene.h
index 66026c1b..2204d667 100644
--- a/src/qtui/chatscene.h
+++ b/src/qtui/chatscene.h
@@ -26,11 +26,12 @@
 #include <QSet>
 
 #include "columnhandleitem.h"
-
+#include "messagefilter.h"
 
 class AbstractUiMsg;
 class ChatItem;
 class ChatLine;
+class WebPreviewItem;
 
 class QGraphicsSceneMouseEvent;
 
@@ -38,6 +39,11 @@ class ChatScene : public QGraphicsScene {
   Q_OBJECT
 
 public:
+  enum MyEventTypes {
+    ClearWebPreviewEventType = QEvent::User
+  };
+  class ClearWebPreviewEvent;
+
   ChatScene(QAbstractItemModel *model, const QString &idString, qreal width, QObject *parent);
   virtual ~ChatScene();
 
@@ -47,12 +53,16 @@ public:
   int sectionByScenePos(int x);
   inline int sectionByScenePos(const QPoint &pos) { return sectionByScenePos(pos.x()); }
   inline bool isSingleBufferScene() const { return _singleBufferScene; }
+  inline bool containsBuffer(const BufferId &id) const;
   inline ChatLine *chatLine(int row) { return (row < _lines.count()) ? _lines[row] : 0; }
 
   inline ColumnHandleItem *firstColumnHandle() const { return firstColHandle; }
   inline ColumnHandleItem *secondColumnHandle() const { return secondColHandle; }
 
+  virtual bool eventFilter(QObject *watched, QEvent *event);
+
 public slots:
+  void updateForViewport(qreal width, qreal height);
   void setWidth(qreal, bool forceReposition = false);
 
   // these are used by the chatitems to notify the scene and manage selections
@@ -63,13 +73,17 @@ public slots:
 
   void requestBacklog();
 
+  void loadWebPreview(ChatItem *parentItem, const QString &url, const QRectF &urlRect);
+  void clearWebPreview(ChatItem *parentItem = 0);
+
 signals:
-  void sceneHeightChanged(qreal dh);
+  void lastLineChanged(QGraphicsItem *item, qreal offset);
 
 protected:
   virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent);
   virtual void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent);
   virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent);
+  virtual void customEvent(QEvent *event);
 
 protected slots:
   void rowsInserted(const QModelIndex &, int, int);
@@ -77,6 +91,8 @@ protected slots:
 
 private slots:
   void handlePositionChanged(qreal xpos);
+  void showWebPreview();
+  void clearWebPreviewEvent(ClearWebPreviewEvent *event);
 
 private:
   void setHandleXLimits();
@@ -88,6 +104,15 @@ private:
   QList<ChatLine *> _lines;
   bool _singleBufferScene;
 
+  // calls to QChatScene::sceneRect() are very expensive. As we manage the scenerect ourselves
+  // we store the size in a member variable.
+  QRectF _sceneRect;
+  int _firstLineRow; // the first row to display (aka: not a daychange msg)
+  void updateSceneRect();
+  void updateSceneRect(qreal width);
+  void updateSceneRect(const QRectF &rect);
+  qreal _viewportHeight;
+
   ColumnHandleItem *firstColHandle, *secondColHandle;
   qreal firstColHandlePos, secondColHandlePos;
 
@@ -99,6 +124,24 @@ private:
   bool _isSelecting;
 
   int _lastBacklogSize;
+
+  struct WebPreview {
+    ChatItem *parentItem;
+    WebPreviewItem *previewItem;
+    QString url;
+    QRectF urlRect;
+    QTimer delayTimer;
+    WebPreview() : parentItem(0), previewItem(0) {}
+  };
+  WebPreview webPreview;
 };
 
+bool ChatScene::containsBuffer(const BufferId &id) const {
+  MessageFilter *filter = qobject_cast<MessageFilter*>(model());
+  if(filter)
+    return filter->containsBuffer(id);
+  else
+    return false;
+}
+
 #endif